FR85339E - Safety logic circuit of the type and - Google Patents

Safety logic circuit of the type and

Info

Publication number
FR85339E
FR85339E FR963433A FR963433A FR85339E FR 85339 E FR85339 E FR 85339E FR 963433 A FR963433 A FR 963433A FR 963433 A FR963433 A FR 963433A FR 85339 E FR85339 E FR 85339E
Authority
FR
France
Prior art keywords
type
logic circuit
safety logic
safety
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR963433A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie des Freins et Signaux Westinghouse SA
Original Assignee
Compagnie des Freins et Signaux Westinghouse SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR959624A priority Critical patent/FR1391823A/en
Application filed by Compagnie des Freins et Signaux Westinghouse SA filed Critical Compagnie des Freins et Signaux Westinghouse SA
Priority to FR963433A priority patent/FR85339E/en
Priority to DEC34654A priority patent/DE1265786B/en
Priority to BE657664D priority patent/BE657664A/xx
Priority to GB125/65A priority patent/GB1099001A/en
Priority to US423521A priority patent/US3421018A/en
Priority to ES0307886A priority patent/ES307886A1/en
Priority to CH13765A priority patent/CH423878A/en
Priority to NL6500180A priority patent/NL6500180A/xx
Priority to SE112/65A priority patent/SE313838B/xx
Application granted granted Critical
Publication of FR85339E publication Critical patent/FR85339E/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L17/00—Switching systems for classification yards
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003—Modifications for increasing the reliability for protection
    • H03K19/00307—Modifications for increasing the reliability for protection in bipolar transistor circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/007—Fail-safe circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Automation & Control Theory (AREA)
  • Logic Circuits (AREA)
  • Electronic Switches (AREA)
  • Amplifiers (AREA)
  • Safety Devices In Control Systems (AREA)
FR963433A 1964-01-08 1964-02-12 Safety logic circuit of the type and Expired FR85339E (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR959624A FR1391823A (en) 1964-01-08 1964-01-08 Safety logic circuit of the type and
FR963433A FR85339E (en) 1964-01-08 1964-02-12 Safety logic circuit of the type and
DEC34654A DE1265786B (en) 1964-01-08 1964-12-15 Safety AND gate, which, in the event of a fault in the gate circuit, supplies a predetermined output signal that is effective in the interests of maximum safety
BE657664D BE657664A (en) 1964-01-08 1964-12-28
GB125/65A GB1099001A (en) 1964-01-08 1965-01-01 And type fail-safe logic circuit
US423521A US3421018A (en) 1964-01-08 1965-01-05 And type fail-safe logic circuit
ES0307886A ES307886A1 (en) 1964-01-08 1965-01-07 A provision of logical circuit of type of coincidence or y. (Machine-translation by Google Translate, not legally binding)
CH13765A CH423878A (en) 1964-01-08 1965-01-07 ET type safety logic circuit
NL6500180A NL6500180A (en) 1964-01-08 1965-01-08
SE112/65A SE313838B (en) 1964-01-08 1965-01-09

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR959624A FR1391823A (en) 1964-01-08 1964-01-08 Safety logic circuit of the type and
FR963433A FR85339E (en) 1964-01-08 1964-02-12 Safety logic circuit of the type and

Publications (1)

Publication Number Publication Date
FR85339E true FR85339E (en) 1965-07-23

Family

ID=26205257

Family Applications (2)

Application Number Title Priority Date Filing Date
FR959624A Expired FR1391823A (en) 1964-01-08 1964-01-08 Safety logic circuit of the type and
FR963433A Expired FR85339E (en) 1964-01-08 1964-02-12 Safety logic circuit of the type and

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR959624A Expired FR1391823A (en) 1964-01-08 1964-01-08 Safety logic circuit of the type and

Country Status (9)

Country Link
US (1) US3421018A (en)
BE (1) BE657664A (en)
CH (1) CH423878A (en)
DE (1) DE1265786B (en)
ES (1) ES307886A1 (en)
FR (2) FR1391823A (en)
GB (1) GB1099001A (en)
NL (1) NL6500180A (en)
SE (1) SE313838B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510845A1 (en) * 1981-07-31 1983-02-04 Omera Segid LOGIC SAFETY CIRCUITS USED IN PARTICULAR IN RAILWAY SIGNALING AND ELECTRONIC PROCESSING BOX, OR AUTOMATION INCORPORATING AT LEAST ONE OF THESE CIRCUITS

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290585B (en) * 1965-09-14 1969-03-13 Siemens Ag Error-protected gate circuit made up of a plurality of transistor amplifier stages connected in series
US3558905A (en) * 1967-05-02 1971-01-26 Kokusai Denshin Denwa Co Ltd Fail-safe logical system
US3512010A (en) * 1967-09-25 1970-05-12 Sybron Corp Switching circuit with hysteresis
US3600604A (en) * 1968-12-03 1971-08-17 Westinghouse Electric Corp Failsafe logic gates
US3577006A (en) * 1969-03-10 1971-05-04 Collins Radio Co Fail-safe pulsed logic and gate
US3585377A (en) * 1969-06-16 1971-06-15 Ibm Fail-safe decoder circuits
US3673429A (en) * 1970-10-19 1972-06-27 Westinghouse Electric Corp Pseudo-and gate having failsafe qualities
DE2555436C2 (en) * 1975-12-10 1982-09-30 Brown, Boveri & Cie Ag, 6800 Mannheim Fall-off timer for a pulsed system
US4795921A (en) * 1984-04-23 1989-01-03 The Nippon Signal Co., Ltd. Logic operation-oscillation circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB847224A (en) * 1956-09-19 1960-09-07 Nat Res Dev Improvements in or relating to electrical decision element circuits
BE639553A (en) * 1962-11-05
US3314013A (en) * 1963-06-06 1967-04-11 Ibm Variable delay pulse generating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510845A1 (en) * 1981-07-31 1983-02-04 Omera Segid LOGIC SAFETY CIRCUITS USED IN PARTICULAR IN RAILWAY SIGNALING AND ELECTRONIC PROCESSING BOX, OR AUTOMATION INCORPORATING AT LEAST ONE OF THESE CIRCUITS
EP0074674A1 (en) * 1981-07-31 1983-03-23 Societe D'optique, De Mecanique D'electricite Et De Radio O.M.E.R.A. - S.E.G.I.D. Safety logic circuits, particularly usable in railway signalling

Also Published As

Publication number Publication date
FR1391823A (en) 1965-03-12
CH423878A (en) 1966-11-15
ES307886A1 (en) 1965-05-01
BE657664A (en) 1965-04-16
US3421018A (en) 1969-01-07
NL6500180A (en) 1965-07-09
DE1265786B (en) 1968-04-11
SE313838B (en) 1969-08-25
GB1099001A (en) 1968-01-10

Similar Documents

Publication Publication Date Title
FR85339E (en) Safety logic circuit of the type and
FR1414449A (en) Logic circuit type
CH437419A (en) Safety logic circuit with combined negation and intersection function
FR1390297A (en) Safety logic circuit of the type or
FR1339157A (en) Logic circuit
FR1328197A (en) Solid state logic circuit
FR1504335A (en) Logic circuit
FR1319827A (en) Logic circuit
FR1513716A (en) Bistable logic circuit
FR1397510A (en) Cryoelectric logic circuit
FR85514E (en) Logic circuit
FR1477705A (en) Safety logic circuits
FR1461822A (en) Safety logic circuits
AT262836B (en) safe
FR1365836A (en) Logic circuit
FR1488232A (en) Sulfinylpyridines and sulfonylpyridines
FR1445349A (en) Logic circuit
AT247037B (en) Logical circuit
FR1366186A (en) Logic circuit
FR1353060A (en) Logic circuit
FR1350224A (en) Logic circuit
FR1381617A (en) Logic circuit
FR1353696A (en) Logic circuit
FR1337572A (en) Logic circuit
FR1341895A (en) Logic circuit